"Flex fuel" refers to a type of fuel that can be used in vehicles that have been designed to run on either gasoline or an alcohol-based fuel, such as ethanol. It provides flexibility for the driver to choose between different types of fuel options.
It has 4WD and comes equipped with a powerful 5.3 L V8 Flex Fuel engine mated with a 6 - speed automatic transmission. (shoppok.com)
And «flex fuel vehicles,» which run on a special ethanol blend, enjoy a $ 1,000 rebate. (moneysense.ca)
For moving a van full of passengers, V8 power is standard, and options start with either a 4.8 liter or a 5.3 liter (with Flex Fuel capability). (autobytel.com)